18 March 2014

Decoding pocorgtfo03.pdf with multimon-ng

Having had a read of pocorgtfo03.pdf (you can get it from here) and learning of its chameleon-like properties, I resolved to investigate the claim that "Treated as single-channel raw audio, 16-bit signed little-endian integer, at a sample rate of 22,050 Hz, it contains a 2400 baud AFSK transmission".

I'd already confirmed that the pdf looked like a JPG using the file command: